If you've been looking at a new TV or monitor, it's likely you've heard mentions of "4K" and "UHD," or Ultra High Definition. Here's what they really mean.

When it comes to TVs, 4K and Ultra HD (or UHD) are referring to the same resolution. Those TVs, along with Ultra HD Blu-ray, and nearly all UHD streaming content from Netflix, Amazon and others ...

The latter is on sale for $134.99 (down from $153.99), while just preordering the film on 4K UHD is on sale for $29.99, down from an MSRP of $37.99. Both are expected to release on December 5 this ...

4K is common on TVs, but it’s not the only UHD resolution available. Some displays, especially computer monitors, are UHD but with different numbers of pixels — as long as they are higher than ...

I'd say now is an ideal time to invest in the best 4K monitor for gaming. Not only is the new Switch 2 about to jump on the UHD bandwagon, but more gaming PCs than ever can handle higher resolutions.